BGH - BT2909S _ (29M63) _ SERVICE MODE _ SCREEN & WHITE BALANCE ADJUSTMENT
TO ENTER SERVICE MODE [FACTORY MODE]
- Switch on the TV set.
- Press the “MENU” key on RC to show the “PICTURE” OSD menu.
- Move the cursor to “Contrast” item then press the “9”, “7”, “3”, “5” key continuously on Remote Control within 3 seconds then enter P-Mode.
- The “P” letter will appear on the left low corner of the screen when enter P-Mode.
- Also the “FACTORY HOTKEY” will be set to “ON ( = 1 )”.
AN ALTERNATE METHOD
- Press the “RECALL” key on RC to enter P-mode directly.
- This will be active only when the “FACTORY HOTKEY” had set to “ON ( = 1 )”.
- When the power on with “FACTORY HOTKEY” had set to “ON ( = 1 )”, the set will enter the P-Mode automatically.
TO EXIT SERVICE MODE [FACTORY MODE]
- Press the “REALL” or “MENU” key on RC to exit the Service Mode.
KEY FUNCTIONS IN SERVICE MODE
Use the Remote Control to navigate in P-Mode:
- Press “0” to “9” key to select factory adjustment page.
- Press “▲▼” key to select option.
- Press “►◄” key to adjust or select option.
- Press “DISPLAY” key to display software version.
- Press “MENU” key to exit the Service Mode.
- Press “RECALL” key to enter or exit the Service Mode.
- All change in P-Mode will be saved in EEPROM automatically.
SCREEN & FOCUS ADJUSTMENT
- Input cross hatch pattern signal to RF input.
- Enter Service Mode.
- Press “0” key on the RC and the screen will become a horizontal line.
- Adjust the “SCREEN” VR of the FBT until the horizontal line can just be seen barely (minimum visible intensity).
- Press “0” key again on the RC to exit the screen voltage adjustment mode.
- Adjust the “FCOUS” VR of the FBT until the vertical line and horizontal line becomes clear.
WHITE BALANCE ADJUSTMENT
- Input a black and white pattern to RF input.
- Enter P-Mode, press key “3 ” to select white balance adjustment menu.
- Use the color analyzer to measure the black side of the screen. Adjust the value of “RC”,”GC” and “BC” to set the reading of the color analyzer to x=274, y=280. (11500 K).
- Then measure the white side of the screen. Adjust the value of “RD”, “GD” and “BD” to set the reading of the color analyzer to x=274, y=280. (11500 K).
- Repeat step 3&4 until you can get the correct reading for both black and white sides.
- The “SUBB” and “SubCON” items are used to assistant the white balance adjustment. It is the same function as the user OSD menu “Brightness” and “Contrast” items. You can adjust these items to get the expect intensity when adjusting the white balance.
- YUV white balance black level offset setup: It is not need to adjust the white balance for YUV mode when production, but the BLOR-Y, BLOG-Y and BLOB-Y items which locate in EEPROM address 0x0A, 0x0B and 0x0C need to write in the right values to set the YUV mode black level offset before production. These offset values should be written by the PE engineer when making the EEPROM copy for the new lot with difference tube.
AUTO-OFFSET AND GET-OFFSET
- The “GET OFFSET” can use to make the EEPROM copy by PE engineer. When the PAL and NTSC geometry adjustment had finished, trigger the “GET OFFSET” from “0” to “1” to store the geometry offset datum between PAL and NTSC in EEPROM.
- On producing, these geometry offset datum can use to easy the NTSC geometry adjustment. When finished the PAL geometry adjustment, trigger the “AUTO OFFSET” from “0” to “1”, then the geometry adjustment of NTSC signal will finish automated. If now the geometry of NTSC signal is look good, it not needed to adjust the geometry of NTSC signal any more.
- Enter Service Mode, press key “6” to select page “6”. Set the corresponding item to require value.
- Enter Service Mode, press key “7” to select page “7”. Set the corresponding item to require value.
- Enter Service Mode, press key “8” to select page “8”. Set the corresponding item to require value.
- The “HEALTH FLAT” and “AC DISPLAY” options are valid only on model NX56-AP1 (example 29A41). The “LANGUAGE4” and “PIC PRESET” options are valid only on model NX56-AP2 (example 21E26).
